Mump 1304 18 Ford Mustang Drum Brake Drum Brake Front Spindle

19. Drum brake front spindle seals and rear axle seals call for careful treatment. Installation must always be performed uniformly with a seal driver or you wind up with a damaged seal, as shown on the right, which was driven in place with a punch. Impact pops the seal spring. Without the seal lip spring, the seal lip loses contact with the axle and you will have leaks and brake shoe contamination.